York, Pennsylvania UV Index

York UV index today — burn time, EPA scale, and sun-protection guidance

York, PA · UV Index right now

Skin burns in ~25 min

UV 5.3Extreme

A UV index of 5.3 means unprotected skin can begin to burn in roughly 17 minutes for the most sun-sensitive skin types (Fitzpatrick type I).

Peak UV today: 11:13 AM3:13 PM

Estimated from today’s sunrise and sunset: UV is strongest in the two hours either side of solar noon (1:13 PM local time).

EPA UV Index scale

Current reading: UV 5.3Extreme.

Sun protection right now

SPF & cover-up
Take all precautions: SPF 50+ broad-spectrum sunscreen, protective clothing, and minimize sun exposure midday.
Reapply
Reapply every two hours and after swimming or heavy sweating.
Safe exposure
Unprotected fair-to-medium (Fitzpatrick III) skin can begin to burn in about 25 minutes at this UV level. Sunscreen, shade, and cover-up extend that window.

EPA / WHO sun-safety guidance; type III skin baseline. Current band: Extreme.

Burn time by skin type

The current UV index is 5.3 (Extreme) — unprotected skin can begin to redden fastest for the fairest (Fitzpatrick type I) skin and slowest for the darkest (type VI).

See the full minutes-to-burn table for every UV level and all six skin types in the sunburn-time guide.

Sun protection for today's UV

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UV through the year in York

At York’s mid-latitude the sun’s height swings widely through the year, and UV runs strongest in May, when the estimated clear-sky peak UV index reaches about 11 around solar noon. At that peak the noon sun reaches about 69° above the horizon. Each month below pairs the noon sun elevation with the estimated peak UV and how fast unprotected skin can begin to redden.

Noon sun elevation, estimated clear-sky peak UV, and burn time by skin type
MonthNoon sunelevationPeak UVclear-sky est.Type Imin to burnType IIImin to burnType VImin to burn
January29°2
February37°42233111
March48°6152274
April60°9101549
May69°1181240
June73°1181240
July72°1181240
August64°1091344
September53°7131963
October42°5182789
November32°33044148
December27°2

Clear-sky estimate from sun angle and elevation — day-to-day clouds and ozone shift the real index up or down. Burn times are first-redness approximations for unprotected skin, not a safe-exposure budget.

Frequently asked

When is UV strongest in York?
In York the sun rides highest around May, when the estimated clear-sky peak UV index reaches about 11. Within any day it peaks near solar noon — roughly 10 a.m. to 4 p.m. local time. It is also stronger at higher elevation and near reflective surfaces like water, sand, and snow.
Can you get sunburned on a cloudy day in York?
Yes. Up to about 80% of UV radiation passes through clouds, so you can still burn in York on an overcast day. The WHO notes that thin or scattered cloud offers little protection — check the UV Index, not the sky.

UV & sun-safety guides

See how the UV Index works — including why clouds are no shield — plus evergreen guides to burn time, vitamin D, skin-cancer risk, and when UV is strongest, collected on the UV Index hub.

More for York

See the full York, PA weather forecast — hour-by-hour outlook, NOAA radar, satellite, and air quality.